The WT will lose it’s tax exempt charitable status in Australia, I’m certain of it.
I doubt it.
To take JWs off of their charitable status would imply not recognizing them as a religion. Unfortunately, thought the JWs actions were cruel and outright immoral, they didn’t break the law.
To fight the problem at its core, Australia will need to pass laws meant to enforce some of the findings of that commission. For instance, requiring religions to report child abuse. Once they fail to do it, Australia will need to prosecute the dissidents and send them to jail. These will then be in jail, not for their faith, but purely for not reporting ongoing child abuse.
Now, if the JWs leaders refuse to comply with such laws, this would make their organization a criminal one. Only then will Australia be able to question the religious status of the JWs.